WN 3723 then WN 164 at Phoenix
San Diego → Phoenix → Austin
Timetable, Phoenix time
20:55WN 3723 from San Diego at the gate
18:05WN 164 to Austin leaves the gate
21 h 10 apart on the timetable, overnight
WN 164 leaves 21 h 10 after WN 3723 arrives on the timetable: more than half a day, so not a connection we count.